Positive paste mixing technology

A positive electrode and process technology, applied to battery electrodes, lead-acid battery electrodes, structural parts, etc., can solve the problems of large differences in the acid absorption value and porosity of the plates, and achieve the effect of increasing the acid absorption value and increasing the service life

Active Publication Date: 2016-11-16
济源市万洋绿色能源有限公司
View PDF11 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The acid content of the battery is mainly composed of the acid absorption value of the separator and the plate. At present, the AGM glass fiber cotton separator is commonly used in the lead-acid battery, and the difference in the acid content is not large. Differences in technology and paste formulations lead to large differences in the acid absorption value and porosity of the plates

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Positive paste mixing technology
  • Positive paste mixing technology
  • Positive paste mixing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Positive electrode and paste process, including the following steps: (1) dry stirring: mix and stir the raw materials with a weight part of 1039.2-1076 for 5-7 minutes; (2) wet stirring: add pure water with a weight part of 112.2-132.6, and continue stirring 4-5min; (3) Adding acid: 90.5-91.0 parts by weight, density 1.4g / cm 3 sulfuric acid, add acid for 11-13min, and keep stirring; (4) water cooling: when the paste temperature is 55-58°C, start circulating water to cool down; (5) air cooling: when the paste temperature is between 65-75°C (6) Paste output: the stirring time after acid addition is greater than or equal to 7 minutes, the paste output temperature is less than or equal to 48°C, and the paste density during paste output is 4.4-4.5g / cm 3 .

[0016] The raw materials in the step (1) are composed of the following components by weight: 990-1010 parts of lead powder, 4.7-5.0 parts of additives, 1.4-2 parts of trilead tetraoxide, 20-24 parts of raw powder, leachi...

Embodiment 2

[0022] The positive electrode and paste process includes the following steps: (1) dry stirring: mix and stir 1039.2 parts by weight of raw materials for 5 minutes; (2) wet stirring: add pure water with 112.2 parts by weight and continue stirring for 4 minutes; (3) add Acid: adding weight parts is 90.5, density is 1.4g / cm 3 (4) Water cooling: when the paste temperature is 55°C, start circulating water to cool down; (5) Air cooling: when the paste temperature is 65°C, start air cooling; ( 6) Paste: the stirring time after adding acid is equal to 7min, the paste temperature is equal to 43°C, and the paste density is 4.4g / cm 3 .

[0023] The raw materials in the step (1) are composed of the following components by weight: 990 parts of lead powder, 4.7 parts of additives, 1.4 parts of trilead tetraoxide, 20 parts of raw powder, 8 parts of acid powder, solid modified two 15 parts of silicon oxide.

[0024] The particle size of the solid modified silicon dioxide is 9 nanometers. ...

Embodiment 3

[0029] The positive electrode and paste process includes the following steps: (1) dry stirring: mix and stir 1076 parts by weight of raw materials for 7 minutes; (2) wet stirring: add pure water with 132.6 parts by weight and continue stirring for 5 minutes; (3) add Acid: adding weight parts is 91.0, density is 1.4g / cm 3 sulfuric acid, add acid for 13 minutes, and continue to stir; (4) water cooling: when the paste temperature is 58 ℃, start circulating water to cool down; (5) air cooling: when the paste temperature is between 75 ℃, start air cooling ; (6) Paste: the stirring time after acid addition is equal to 17min, the paste temperature is equal to 48°C, and the paste density is 4.5g / cm 3 .

[0030] The raw materials in the step (1) are composed of the following components by weight: 1010 parts of lead powder, 5.0 parts of additives, 2 parts of trilead tetraoxide, 24 parts of raw powder, 10 parts of acid powder, solid modified two 25 parts of silicon oxide.

[0031] The...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention provides a positive paste mixing technology, and relates to the technical field of storage batteries. The positive paste mixing technology comprises the following steps of (1) dry stirring, namely mixing and stirring raw materials for 5-7 minutes; (2) wet stirring, adding pure water and further stirring for 4-5 minutes; (3) acid adding, adding a sulfuric acid and continuously stirring; (4) water cooling, when the temperature of paste is 55-58 DEG C, starting circulating water cooling; (5) air cooling, when the temperature of the paste is 65-75 DEG C, starting air cooling; and (6) paste discharging, wherein the stirring time after acid adding is greater than or equal to 7 minutes, the temperature of the discharged paste is smaller than or equal to 48 DEG C and the density of lead paste when discharged is 4.4-4.5g/cm<3>. The invention provides the positive paste mixing technology. An acid absorption value of a positive electrode generated by the technology is increased; and the positive electrode is not easily softened, so that the service lifetime of the lead-acid storage battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of accumulators, in particular to positive electrodes and paste processes. Background technique [0002] The current life of lead-acid batteries is generally only 350 deep cycles or about 15-18 months. In addition to manufacturing defects, more battery failures are caused by the softening of the plates. As for the softening of the plate, the market return caused by this reason is still the first major item after the lead-acid battery has been used for such a long time. Many research teams are studying the failure mode and improvement method of this problem, but it is generally recognized no. [0003] After a lot of anatomical analysis, our company believes that the acid content of the battery is one of the reasons that has a great impact on the softening of the positive plate. The acid content of the battery is mainly composed of the acid absorption value of the separator and the plate. At present, the AGM...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/16H01M4/62
CPCH01M4/16H01M4/624Y02E60/10
Inventor 张腾薛卫杰黄华侯慧敏
Owner 济源市万洋绿色能源有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap